<div>
    <div style="height:500px;display: flex;justify-content: center;">
        <div class="face_box">
            <img src="../.././../../assets/images/person2.png" alt="">
            <video #videoElement id="video" autoplay=""></video>
            <canvas #canvasElement id="canvas" width="533" height="432"></canvas>
        </div>
    </div>
    <div style="text-align:right">
        <button nz-button nzType="primary" nzSize="large" type="submit" (click)="takePhoto()">
            拍照
        </button>
    </div>    
</div>
